The answer is False, they are not always correct
To solve this problem we will apply the concepts related to energy conservation. We will start by defining the expressions of the electric potential energy for a given charge (and for the electron). With this we can apply the conservation of kinematic energy. Our values are given as
The potential energy:
Here,
q = Charge
V = Voltage
Or specifically for an electron we can define it as,
Here,
e = Charge of electron
V = Voltage
Applying the energy conservation equations we have that the kinetic energy must be equivalent to the electric potential energy,
Here
v = Velocity
m = Mass
Rearranging,
Replacing,
For each electron the velocity is,
Therefore the velocity of the electron is
Answer:
The current drawn by the motor from the line is 4.68 A.
Explanation:
Given that,
Internal resistance of the dc motor, r = 3.2 ohms
Voltage, V = 120 V
Emf in the motor,
We need to find the current drawn by the motor from the line. A dc motor with its rotor and field coils connected in series, applying loop rule we get :
I is current drawn by the motor
So, the current drawn by the motor from the line is 4.68 A. Hence, this is the required solution.
Solution :
Philosophy is idealism
The idealism is considered as a philosophical approach where the main belief is that 'ideas' are the only true realities and it is the only thing that is worth knowing.
Philosophy in cynicism
In cynicism philosophy, it is belief that the purpose of the life is to live in the virtue and in agreement with the nature. They are practiced by the cynics.
Philosophy in stoicism
Stoicism is a philosophy that hails from Rome and Greece. It beliefs in life that provides maximum positive emotions of the people, and it reduces negative emotions. they also believes that it helps people to hone their virtues of the characters.